// Copyright (c) 2001-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of "Eclipse Public License v1.0"

// which accompanies this distribution, and is available

// at the URL "http://www.eclipse.org/legal/epl-v10.html".

//

// Initial Contributors:

// Nokia Corporation - initial contribution.

//

// Contributors:

//

// Description:

// $Workfile: obexinternalutils.h $

// $Author: Stevep $

// $Revision: 1 $

// $Date: 12/11/01 11:36 $

// 

//

#ifndef __OBEXINTERNALUTILS_H

#define __OBEXINTERNALUTILS_H

#include <e32base.h>

class RReadStream;

class RWriteStream;

class ObexInternalUtils : public CBase

/**

Utility class containing on static member functions to provide internalize/externalize functionality to

HBufC and HBufC8.

@internalTechnology

@released

*/

	{

public:

	//Enumeration for panic codes

	enum TObexInternalUtilsPanic

		{

		EObexBadStreamVersion //< Panic if stream version is incorrect

		};

public:

	/**

	 * Externalizes a HBufC to a stream.

	 *

	 * @param aBuf The HBufC to be externalized

	 * @param aStream The stream to be written to

	 * @leave KErrXXX Leaves with standard EPOC stream leave codes

	 */

	IMPORT_C static void ExternalizeL(const HBufC* aBuf, RWriteStream& aStream);

	/**

	 * Internalizes a HBufC from a stream.

	 *

	 * @param aBuf The HBufC to be internalized

	 * @param aStream The stream to be read from

	 * @leave KErrXXX Leaves with standard EPOC stream and memory allocation leave codes

	 */

	IMPORT_C static void InternalizeL(HBufC*& aBuf, RReadStream& aStream);

	/**

	 * Externalizes a HBufC8 to a stream.

	 *

	 * @param aBuf The HBufC8 to be externalized

	 * @param aStream The stream to be written to

	 * @leave KErrXXX Leaves with standard EPOC stream leave codes

	 */

	IMPORT_C static void ExternalizeL(const HBufC8* aBuf, RWriteStream& aStream);

	/**

	 * Internalizes a HBufC8 from a stream.

	 *

	 * @param aBuf The HBufC8 to be internalized

	 * @param aStream The stream to be read from

	 * @leave KErrXXX Leaves with standard EPOC stream and memory allocation leave codes

	 */ 

	IMPORT_C static void InternalizeL(HBufC8*& aBuf, RReadStream& aStream);

	/**

	 * Externalizes a TDes to a stream.

	 *

	 * @param aBuf The TDes to be externalized

	 * @param aStream The stream to be written to

	 * @leave KErrXXX Leaves with standard EPOC stream leave codes

	 */

	IMPORT_C static void ExternalizeL(const TDes& aBuf, RWriteStream& aStream);

	/**

	 * Internalizes a TDes from a stream.

	 *

	 * @param aDes The TDes to be internalized

	 * @param aStream The stream to be read from

	 * @leave KErrXXX Leaves with standard EPOC stream and memory allocation leave codes

	 * @leave KErrOverflow if the incoming data is too big for the TBuf provided

	 */

	IMPORT_C static void InternalizeL(TDes& aBuf, RReadStream& aStream);

	/**

	 * Externalizes a TDes8 to a stream.

	 *

	 * @param aBuf The TDes8 to be externalized

	 * @param aStream The stream to be written to

	 * @leave KErrXXX Leaves with standard EPOC stream leave codes

	 */

	IMPORT_C static void ExternalizeL(const TDes8& aBuf, RWriteStream& aStream);

	/**

	 * Internalizes a TDes8 from a stream.

	 *

	 * @param aBuf The TDes8 to be internalized

	 * @param aStream The stream to be read from

	 * @leave KErrXXX Leaves with standard EPOC stream and memory allocation leave codes

	 * @leave KErrOverflow if the incoming data is too big for the TBuf provided

	 */

	IMPORT_C static void InternalizeL(TDes8& aBuf, RReadStream& aStream);

	/**

	 * Indicates Panic originates from Obex MTM

	 *

	 * @param aPanic The type of TObexInternalUtilsPanic which has taken place

	 */

	IMPORT_C static void Panic(TObexInternalUtilsPanic aPanic);

	};

#endif//__OBEXINTERNALUTILS_H